Phase dispersion measurement on laser mirrors using fringe free spectral interferometry

K. Csonti; G. Mészáros; A. P. Kovács

doi:10.1117/12.2525800

21 June 2019 Phase dispersion measurement on laser mirrors using fringe free spectral interferometry

K. Csonti, G. Mészáros, A. P. Kovács

Proceedings Volume 11057, Modeling Aspects in Optical Metrology VII; 110571C (2019) https://doi.org/10.1117/12.2525800
Event: SPIE Optical Metrology, 2019, Munich, Germany

Abstract

We present a novel method for measuring the spectral phase of laser mirrors, where fringe free spectrally resolved interferograms are recorded, and a simple arcus cosine transformation is used to retrieve the spectral phase from the normalized interferograms. The method does not require time delay correction during the evaluation of the interferograms. Group-delay dispersion of a silver and a high reflection mirror is measured to test the precision of the method and it is compared with the precision provided by the cosine function fit and the Fourier-transform method.

Citation Download Citation

K. Csonti, G. Mészáros, and A. P. Kovács "Phase dispersion measurement on laser mirrors using fringe free spectral interferometry", Proc. SPIE 11057, Modeling Aspects in Optical Metrology VII, 110571C (21 June 2019); https://doi.org/10.1117/12.2525800

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